word problem

Using the table below, the 1996 federal income tax rate schedule for marries couples, find the break- even point for a proposed 27% flat tax vs. the current schedule. Report your answer as an ordered pair, income and tax (i, T(i) ).

If taxable income is over--- | But not over- | The tax is:
$6,425 | $44,250 | 15% of the amount over $6425
$44,250 | $89,675 | $5,673.75 plus 28% of the amount over $44,250
$89,675 | $151,850 | $18,392.75 plus 31% of the amount over $89,675
$151,850 | $267,900 | $37,667.00 plus 36% of the amount over $151,850
$267,900 | No limit | $79,445.00 plus 39.6% of the amount over $267,900